Android Auto as “dumb phone”
Lately, I've been leaving my phone in Android Auto mode when I want to focus. This basically turns it into a dumb phone but with Google Maps and an easier interface (and podcasts!).
You can still pull down notifications and get into apps that way, of course.
However, when you hit the “switch apps” button or the “home” button, you get a prompt to ask if you want to exit Android Auto. This is enough of a pause to get me to think twice. In Android Auto I have access to directions, phone, SMS, and podcasts. I can also access notifications.
This is what I need for 90% of my work day and my time with family.